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EP0059992A1 - Procédé et machine pour la fabrication de roues d'engrenages - Google Patents

Procédé et machine pour la fabrication de roues d'engrenages Download PDF

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Publication number
EP0059992A1
EP0059992A1 EP82200162A EP82200162A EP0059992A1 EP 0059992 A1 EP0059992 A1 EP 0059992A1 EP 82200162 A EP82200162 A EP 82200162A EP 82200162 A EP82200162 A EP 82200162A EP 0059992 A1 EP0059992 A1 EP 0059992A1
Authority
EP
European Patent Office
Prior art keywords
gear
rotation
wheel body
movement
drive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP82200162A
Other languages
German (de)
English (en)
Inventor
Erich Kotthaus
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rheinmetall Air Defence AG
Original Assignee
Werkzeugmaschinenfabrik Oerlikon Buhrle AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Werkzeugmaschinenfabrik Oerlikon Buhrle AG filed Critical Werkzeugmaschinenfabrik Oerlikon Buhrle AG
Publication of EP0059992A1 publication Critical patent/EP0059992A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23F—MAKING GEARS OR TOOTHED RACKS
    • B23F9/00—Making gears having teeth curved in their longitudinal direction
    • B23F9/08—Making gears having teeth curved in their longitudinal direction by milling, e.g. with helicoidal hob
    • B23F9/10—Making gears having teeth curved in their longitudinal direction by milling, e.g. with helicoidal hob with a face-mill

Definitions

  • the invention relates to a method for producing gear wheels by cutting out tooth gaps from a wheel body with a knife head rotating around a cutter head axis and provided with knives, the cutter head and wheel body performing a plunge movement relative to one another, and a gear cutting machine suitable for carrying out the method.
  • the aim of this known method is to improve the durability of the knives and the quality of the surfaces of the tooth flanks.
  • this is only possible with the above-mentioned method in the production of tooth flanks with rolled teeth.
  • This poses the problem of the uneven stability of the inner and outer cutting edges, particularly in processes in which bevel gears with unserrated tooth flanks are produced by a plunge movement which, instead of perpendicular to the surface line, runs perpendicular to the wheel body axis.
  • the invention as characterized in the claims, solves the problem of creating a method, thanks to which even if the tooth flanks are not rolled, the inner and outer cutters of the knives are loaded more uniformly.
  • a wheel body 4 is fastened to the workpiece spindle of the gear cutting machine in a manner which is not shown in detail but is also known.
  • the wheel body 4 is simplified and shown in section only by the two curved pieces 5 and 6 for the peripheral surface or the boundary line for the tooth gap depth. In this illustration, a wheel body axis 7 intersects the plane of the drawing at a point 8.
  • a knife 9 is visible on the cutter head 1, several of which are arranged on the cutter head 1 in a known manner.
  • the knife 9 carries an outer cutting edge 10, an inner cutting edge 11 and a central cutting edge 12. These can also each be arranged on a separate knife. In this case a group of knives is provided, each knife carrying a cutting edge. These knives are then arranged one behind the other. The relevant cutting edges of these knives projected onto the cutting plane of the wheel body 4, which corresponds to the plane of the drawing, result in the cutting edges 10, 11 and 12.
  • the knife head 1 with the knife 9 is shown in its starting position 13 before the piercing with solid lines. In its end position 14, after piercing, it is shown with dashed lines.
  • Arrows 15 and 16 indicate the directions of movement of the cutter head 1 and wheel body 4 to one another during the grooving.
  • F ig. 2 shows a representation analogous to FIG. 1, but in contrast to FIG. 1 it is no longer the wheel body 4 but the cutter head 1 which executes the rotary movement. Arrows 17 and 18 indicate the individual components of the relative movement. Arrow 19 represents the resulting movement. A tooth gap 20 can thus be seen in the wheel body 4. An initial position 21 and an end position 22 of the measuring head 1 relative to the wheel body 4 are also entered.
  • a triangular chip cross section 32 is cut out through the inner cutting edge 11 of the knife 9, a rectangular chip cross section 33 through the central cutting edge 12 and a larger triangular chip cross section 34 through the outer cutting edge 10.
  • the outer cutting edge 10 has to produce a rake face that is larger by the triangle 35 than the rake face of the inner cutter 11.
  • FIG. 5 schematically shows a cross section of a tooth gap 2 which is produced by the method according to the invention.
  • the inner cutting edge 11 and the outer cutting edge 10 each produce chip cross sections 36 and 37 of the same size.
  • the method according to the invention consists in imparting a rotation by a small angle of rotation cK to the cutter head 1 or the wheel body 4 such that the inner cutting edge 11 and the outer cutting edge 12 each have roughly equal chip cross sections 36 and 37 Cut out (according to Fig. 5).
  • a workpiece spindle 38 which carries a wheel body 40 to be toothed at one end 39, is rotatably mounted about a workpiece spindle axis 41 in a manner not shown but known.
  • a gear 43 is attached, which meshes with a gear 44. This is fixed on an output shaft 45 of a drive motor 46.
  • a cutter head 49 is fastened with knives 50 on a tool spindle 47, which is likewise rotatably mounted about a tool spindle axis 48 in a known and therefore not shown manner.
  • the tool spindle 47 is driven by a worm wheel 51, which is driven by a further drive motor 54 via a bevel gear 52 and a worm 53.
  • the drive motor 54, as well as the tool spindle 47, are mounted in a roller drum 55.
  • the roller drum 55 is rotatably supported in a known manner about a roller drum axis 56.
  • the roller drum 55 is surrounded on its periphery 57 by a worm wheel 58 which is driven by a drive motor 60 via a worm 59.
  • a feeler 61 (e.g. a potentiometer) is provided to detect the piercing movement of the cutter head 49 and the wheel body 40 against one another, which is connected to the workpiece spindle 38, for example, via an articulated lever 62.
  • the feeler 61 is attached to the machine bed, for example, in a manner not shown.
  • Lines 63, 64, 65 and 66 connect the drive motors 46, 54 and 60 and the pushbutton 61 to an electrical control device 67.
  • roller drum 55 In a gear cutting machine that is not intended to produce rolled gears, the roller drum 55 is fixed or replaced by a fixed frame. Accordingly, a drive motor 60 and the line 64 are missing.
  • the piercing movement which is transmitted to the feeler 61 via the articulated lever 62, is converted into an electrical signal in the feeler 61 and input into the control device 67 via line 66.
  • the drive motor 46 or 60 is now controlled so that the rotation takes place by an angle of rotation during the piercing process.
  • Articulated lever 62, feeler 61 and the electrical line 66 together form a transmission device for the piercing movement.
  • it can be intermeshed in the single part process or in the non-stop process.
  • a drive motor 70 can be seen which drives a spur gear 73 via a belt transmission 71 and a clutch 72.
  • This drives further spur gears 76, 77, 78 and 79 mounted on shafts 74 and 75.
  • This in turn drives a main drive shaft 81 via a spur gear 80.
  • a wide spur gear 82 which drives further spur gears 83, 84, and 85.
  • Spur gear 85 is arranged on a shaft 86 which runs coaxially with the axis of rotation 87 of a roller drum 88.
  • a drive train 89 for a tool spindle 47 is accommodated in this in a manner known per se.
  • the tool spindle 47 carries a cutter head 49 in a known manner.
  • the drive train 89 forms, together with the spur gears 83, 84 and 85, a tool spindle drive 90.
  • the main spindle drive shaft 81 ends at one end in an epicyclic gear 91. Also in the epicyclic gear 91 ends at one end a shaft 92, at the other end of which a spur gear 93 is seated. This meshes with a spur gear 94 which sits on a shaft 95.
  • a bevel gear 96 connects the shaft 95 to a shaft 97 on which a further spur gear 99 is slidably mounted on a toothing 98.
  • This meshes with a spur gear 100 which drives a spur gear 102 via a spur gear 101 which is seated on a shaft 103.
  • a known change gear 104 is connected between the shaft 103 and the workpiece spindle 38.
  • the workpiece spindle axis 41 and the wheel body 40 can also be seen here.
  • a further drive motor 105 is arranged, which drives a shaft 109 via spur gears 106, 107 and 108. At one end the shaft 109 carries a worm 110, at the other end a spur gear III. The worm l10 drives a worm wheel 112 which surrounds the roller drum 88. A shaft 116 is driven via spur gears 113, 114 and 115. A further change gear transmission 118 is arranged between this and a shaft 117. A clutch 119 is arranged on the shaft 117. A spur gear 120 at the end of the shaft 117 meshes with a planet carrier 121 of the epicyclic gear 91.
  • a shaft 124 is arranged between the flanges 122 and 123 of the shaft 86. This meshes with a spur gear 125 which is arranged coaxially with a bevel gear 126.
  • a spur gear 128, as well as a clutch 129 and a bevel gear 130, which meshes with the bevel gear 126, are slidably arranged on a shaft 127.
  • the spur gear 128 also meshes with the planet gear carrier 121.
  • the flanges 122 and 123, the rack 124, the star gears 125 and 128 and the bevel gears 126 and 130 form the transmission device with the clutch 129.
  • the workpiece spindle 38 and the tool spindle 47 are compared with one another in a manner known per se and not shown here in such a way that the piercing process can begin.
  • the clutch 129 is switched on, the clutch 119 is switched off.
  • the drive motor 70 and the drive which is not shown in more detail here but is known, is switched on for feeding the tool spindle 47.
  • the rack 124 is shifted to the right in FIG. 7 and the spur gear 125, the bevel gears 126 and 130 and the spur gear 128 rotate slowly.
  • the planet gear carrier 121 thus also rotates, which results in a slight change in the rotational speed of the workpiece spindle 38.
  • This slight change in the speed ratio of the workpiece spindle 38 and the tool spindle 47 results in the rotation by an angle of rotation a in a non-stop cutting process.
  • the tool spindle 38 which in principle is stationary during the plunge cut, can thus be rotated slightly.
  • the clutch 129 is switched off and the clutch 119 is switched on again.
  • the rack 132 is moved upward during the plunge-in process, and the planetary gear carrier 133 of the epicyclic gear train 134 is thus set in a slow rotation. Since the planet gears 137 and 138 have different diameters, the section 135 of the shaft 116 is moved by the slow rotation of the planet gear carrier 133 even when the drive motor 105 is stationary.
  • FIG. 9 shows a further embodiment of a transmission diagram for a gear cutting machine.
  • the change gear 104 is connected in parallel with another change gear 139 with a slightly changed gear ratio.
  • One or the other change-gear transmission 104 or 139 can be switched on or off by means of clutches 140 and 141.
  • the changeover gear transmission 104 must be switched to the change gear transmission 139 by releasing the clutch 140 and switching on the clutch 141. In this way, a slight rotation of the wheel body 40 about the workpiece spindle axis 41 is achieved.
  • the piercing movement is monitored analogously to FIG. 6 by a pushbutton 61.
  • the clutches 140 and 141 are switched on and off by a control unit 142, which is connected via lines 143 and 144 to the clutches 140 and 141, which in this case can be actuated electrically.
  • the already known line 66 connects the pushbutton 61 to the control unit 142.
  • the transmission device comprises the pushbutton 61, the line 66 and the control unit 142.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear Processing (AREA)
EP82200162A 1981-03-10 1982-02-12 Procédé et machine pour la fabrication de roues d'engrenages Withdrawn EP0059992A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1608/81 1981-03-10
CH160881 1981-03-10

Publications (1)

Publication Number Publication Date
EP0059992A1 true EP0059992A1 (fr) 1982-09-15

Family

ID=4214407

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82200162A Withdrawn EP0059992A1 (fr) 1981-03-10 1982-02-12 Procédé et machine pour la fabrication de roues d'engrenages

Country Status (4)

Country Link
EP (1) EP0059992A1 (fr)
JP (1) JPS57168828A (fr)
AU (1) AU8121682A (fr)
BR (1) BR8201266A (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0184007A1 (fr) * 1984-11-23 1986-06-11 Werkzeugmaschinenfabrik Oerlikon-Bührle AG Machine à tailler des roues coniques à denture spirale et des accouplements à faces dentées selon le procédé de taillage continu
WO1994021413A1 (fr) * 1993-03-22 1994-09-29 The Gleason Works Methode d'amenee d'outil dans les operations de realisation d'engrenage
WO1997010068A1 (fr) * 1995-09-15 1997-03-20 The Gleason Works Procede d'avance pour outil
WO1997031746A1 (fr) * 1996-02-29 1997-09-04 The Gleason Works Procede d'usinage de pignons pendant l'indexage
US5716174A (en) * 1996-08-29 1998-02-10 The Gleason Works Tool feeding method
WO2003068682A1 (fr) 2002-02-12 2003-08-21 Itn-Nanovation Gmbh Rutile nanometrique ou oxyde nanometrique et leur procede de production

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1449486A (fr) * 1965-07-23 1966-03-18 Procédé et machines pour usiner des engrenages coniques ou hyperboloïdes
CH432984A (de) * 1963-09-26 1967-03-31 Gleason Works Verfahren und Maschine zum spanabhebenden Bearbeiten eines Kegel- oder Hyperboloidrades mit längsgekrümmten Zähnen
DE1552742A1 (de) * 1965-06-01 1969-07-24 Gleason Works Verfahren zum spanabhebenden Herausarbeiten der Zahnluecken eines Kegel- oder Hyperboloidzahnrades und zur Ausfuehrung dieses Verfahrens dienender Stirnmesserkopf
DE1627358A1 (de) * 1967-10-06 1971-01-07 Klingelnberg Soehne Ferd Verfahren zum Verzahnen von Spiralkegelraedern
US3915060A (en) * 1973-04-24 1975-10-28 Tamotsu Koga Method for cutting paired gears having arcuate tooth traces
CH590105A5 (en) * 1975-03-27 1977-07-29 Oerlikon Buehrle Ag Wear reduction for hypoid gear cutter - has cutter edges inclined for equal cut on both gear flanks

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH432984A (de) * 1963-09-26 1967-03-31 Gleason Works Verfahren und Maschine zum spanabhebenden Bearbeiten eines Kegel- oder Hyperboloidrades mit längsgekrümmten Zähnen
DE1552742A1 (de) * 1965-06-01 1969-07-24 Gleason Works Verfahren zum spanabhebenden Herausarbeiten der Zahnluecken eines Kegel- oder Hyperboloidzahnrades und zur Ausfuehrung dieses Verfahrens dienender Stirnmesserkopf
FR1449486A (fr) * 1965-07-23 1966-03-18 Procédé et machines pour usiner des engrenages coniques ou hyperboloïdes
DE1627358A1 (de) * 1967-10-06 1971-01-07 Klingelnberg Soehne Ferd Verfahren zum Verzahnen von Spiralkegelraedern
US3915060A (en) * 1973-04-24 1975-10-28 Tamotsu Koga Method for cutting paired gears having arcuate tooth traces
CH590105A5 (en) * 1975-03-27 1977-07-29 Oerlikon Buehrle Ag Wear reduction for hypoid gear cutter - has cutter edges inclined for equal cut on both gear flanks

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0184007A1 (fr) * 1984-11-23 1986-06-11 Werkzeugmaschinenfabrik Oerlikon-Bührle AG Machine à tailler des roues coniques à denture spirale et des accouplements à faces dentées selon le procédé de taillage continu
US4664569A (en) * 1984-11-23 1987-05-12 Werkzeugmaschinenfabrik Oerlikon-Buhrle Ag Gear cutting method and machine for cutting spiral bevel gears and contrate gear face clutches
WO1994021413A1 (fr) * 1993-03-22 1994-09-29 The Gleason Works Methode d'amenee d'outil dans les operations de realisation d'engrenage
AU669791B2 (en) * 1993-03-22 1996-06-20 Gleason Works, The Tool feeding method in gear manufacturing processes
CN1046647C (zh) * 1993-03-22 1999-11-24 格里森工场 圆锥齿轮制造过程中的进刀方法
WO1997010068A1 (fr) * 1995-09-15 1997-03-20 The Gleason Works Procede d'avance pour outil
WO1997031746A1 (fr) * 1996-02-29 1997-09-04 The Gleason Works Procede d'usinage de pignons pendant l'indexage
US5800103A (en) * 1996-02-29 1998-09-01 The Gleason Works Method of machining during indexing
KR100291167B1 (ko) * 1996-02-29 2001-08-07 에드워드 제이.펠타 분할동안에기어를가공하는방법
US5716174A (en) * 1996-08-29 1998-02-10 The Gleason Works Tool feeding method
WO2003068682A1 (fr) 2002-02-12 2003-08-21 Itn-Nanovation Gmbh Rutile nanometrique ou oxyde nanometrique et leur procede de production
US7582276B2 (en) 2002-02-12 2009-09-01 Itn Nanovation Ag Nanoscale rutile or anatase oxide and method for producing same

Also Published As

Publication number Publication date
AU8121682A (en) 1982-09-16
JPS57168828A (en) 1982-10-18
BR8201266A (pt) 1983-01-18

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19821220

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Inventor name: KOTTHAUS, ERICH